How to trigger a dag refresh via API?

[jakubgs]

I've written a simple automation that updates my DAGs based on repo pushes using GitHub webhooks. My issue is that the refresh interval makes it sometimes annoyingly slow to pick up changes.

Is there a way to make Airflow refresh DAGs using something like an API call?

I looked at the API documentation but I don't see anything like POST /dags/{dag_id}/refresh. Or am I blind?

[turbaszek]

What do you mean by refreshing DAG?

[jakubgs]

I mean, the folder that contains Python DAG definitions is scanned every N seconds. Is there a way to trigger a scan of that folder via API?

[XD-DENG]

This is handled separately by DagFileProcessorManager (broadly speaking, under Scheduler's scope). Web API doesn't provide any interface for the use case you mentioned ("trigger a scan of DAG folder").

So the short answer is: currently there is no such a way.

[turbaszek]

XD is right. Also I don't see reason why we would need such function - the DAGs should be slowly changing so there's no need to click "update right now". Moreover, the speed of dag parser in 2.0 seems to be vastly increased when compared to 1.10